This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X850TC, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.
Airtac SU32~50 Standard Cylinder SU40X850TC
The AirTAC SU32~50 Standard Cylinder SU40X850TC is a double-acting profile-type standard cylinder with a Ø40mm bore and 850mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X850TC, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke850 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X850TC
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SU32~50 Standard Cylinder SU40X850TC
The AirTAC SU40X850TC is a discontinued double-acting profile-type cylinder with a 40 mm bore and 850 mm stroke. It delivers 628 N push force at 0.5 MPa through a 1/4" port. AirTAC replaced this end-of-line unit with the SAU40X850TC, a direct alternative retaining the exact bore, stroke, output force, port size and SC-series TC mounting interface.
Because this is a nonstandard stroke exceeding the 1200 mm class limit, the 850 mm length demands external guide support to prevent rod bending. Note this SKU lacks a magnet, so it cannot accept a sensor; furthermore, the SAU upgrade switches to CMSG/DMSG/EMSG switches and adds a SAUF built-in-valve option.
Airtac SU32~50 Standard Cylinder SU40X850TC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X850TC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X850TC |
| Bore size | Ø40 mm |
| Stroke | 850 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU40X850TC carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAU40X850TC produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SU32~50 Standard Cylinder SU40X850TC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×850 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.
Where the Airtac SU32~50 Standard Cylinder SU40X850TC Is Used
Long-Stroke Diversion
Drives a 850 mm routing gate on a packaging line, utilizing the 628 N push force at 0.5 MPa to shift heavy cartons between parallel conveyor belts.
Extended Reach Transfer
Actuates a 850 mm parts pusher to extract aluminum extrusions from a cooling bed, requiring external guides to manage the lengthy rod extension.
Replacing the Airtac SU32~50 Standard Cylinder SU40X850TC with the SAU40X850TC
To replace the SU40X850TC, order the SAU40X850TC ensuring your 1/4" port threads (PT/G/NPT) and M12x1.25 rod end match. The TC mounting accessory is reused directly. Since this 850 mm stroke is nonstandard and long, you must use an external guide to prevent side-load and rod-bending issues. Sizing alternatives: a 32 mm bore yields 402 N push at 0.5 MPa, while a 50 mm bore provides 982 N. A plain cylinder does not hold load without live air; the 21 mm cushions only decelerate. For load holding on air loss, install an external rod lock or pilot-operated check valve. The SAUF variant offers a built-in 4M solenoid valve if needed.
Replacement checklist
- ✓ Same bore / stroke → SAU40X850TC
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S): sensor family CS1-B → CMSG
- ✓ Mounting reused (FA/FB/CA/CB/LB)
- ✓ Need a built-in valve? → SAUF
Airtac SU32~50 Standard Cylinder SU40X850TC FAQ
Yes, the SU40X850TC is discontinued. The direct replacement is the SAU40X850TC. It shares the identical 40 mm bore, 850 mm stroke, 628 N force at 0.5 MPa, 1/4" port, and SC-series TC mounting, so it bolts right in.
The 40 mm bore provides 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, and a 128 kgf theoretical max at 1.0 MPa. This specific SKU has no magnet and cannot take a sensor. The SAU replacement supports CMSG/DMSG/EMSG switches.
Related AirTAC SAU Cylinders
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